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DIE. v APPLICATION FILED MAY23.1920. 1,429,219; Patented e a 19 1922,.

5 SHEETSSHEET 1.

H. BELLON.

DIE.

APPLICATION FILED MAY 28. 1920.

Patented Sept. 19,1922...

5 SHEETS-SHEET 2.

H. BELLON.

'DIE.

APPLICATION FILED MAY 28, 1920.

PatentedSept. 19

1922 5 SHEETS-SHEET 3.

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H. BELLON.

DIE.

APPLICATION VFILED MAY 28. 1920.

,4 PatntedSept. 19,1922.

5 SHEETSSHEET'4.

figjzzyzz v H. BELLON.

DIE. APPLICATION FILED MAY28, 1920.

1,429,219.- Y- PatentedS 19,1922.

5 S -SHEET 5. v

Patented Sept. 19, 1922.

tlhll lfifi STATES mzazie HENRY BELLON, OF CHICAGO, ILLINOIS.

DIE.

Application filed May 28,

T 0 all 10 7mm it may concern Be it known that I, HENRY BELLoN, a citizen of the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Dies, of which the following is a specification.

This invention relates to improvements in dies, and more particularly to a die designed and constructed for the making of a particular article of manufacture known as chaplets. To those familiar with the art of metal casting, it is well known that chaplets are used in the molding process for supporting cores Within a mold, and especially where open spaces within the finished casting are to be provided for. A familiar example is the cylinder of an internal combustion motor which is cast with an annular chamber surrounding the cylinder, ordinarily known as a water jacket. Chaplets are manufactured in many shapes and sizes to provide for the many uses to which they are put, and although they are comparatively simple in their structure and are used in large quantities, it is highly important that they be of uniform dimensions, in order to assure the production of perfect castings.

Heretofore, chaplets have been largely manufactured by hand, which, at the present time, is an expensive and "ineflicient method, considering the scarcity and high cost of labor, and considering further the large number of these articles that are used.

The greatest objection to hand made chaplets is the non-uniformity in dimensions or these articles, and it is a known fact that large users of these chaplets employ a staff of workmen whose entire time is occupied by gauging each lot of Chaplets that is received, and sorting and discarding those which do not meet the proper requirements as to size.

The purpose of this invention is to provide a mechanism technically known as a die, which may be used for manufacturing these chaplet-s by power machinery, and to thereby replace hand labor heretofore employed. The enormous increase in production, and the corresponding decrease 1n pense and cost of production go hand m hand with the installation of the power operated machine, and adding to these impor- 1820. Serial No. 384,853.

tant results the absolute uniformity in the fimshed articles, provides a striking example of the superiority of the device as a labor saving machine, although it is perhaps confined to a particular branch of industry.

The dev1ce or die embodying the features of my invention is one especially constructed for the making of a particular form of chaplet, namely, one used in the casting of steam engine or internal combustion motor cylinders, although it is to be understood that with slight modifications a large Variety of shapes and sizes may be produced.

In the accompanying drawings, the die for producing the particular type of chaplet hereinbefore disclosed, is set forth in detail, and the description thereof which follows has reference to the several figures which be briefly described as follows:

F 1g. 1 1s a view in front elevation of the complete die, r

Fig. 2 is a top plan View of the lower or fixed die plate and parts associated therewith,

Fig. 3 is a. bottom plan View of the upper or movable die plate, and showing the parts associated therewith,

Fig. is a view in vertical section of the upper die plate taken on line 4-4 of Figure 3,

Fig. 5 is a view in vertical section show ing the base of the die at the completion of the forming operation,

Fig; 6 is an enlarged detail View of the forming arbor with parts broken away to show the details of construction, as taken on line 66 of Figure 4,

Fig. 7 'is a detailed View in longitudinal section showing the parts in the same position as disclosed in Figure 5, and as taken on line 77 thereof,

Fig. 8 is a detailed View in cross section as taken on line 88 of Figure 2,

Fig. 9 is a detailed view in cross section as taken on line 9-9 of Figure 6, and Fig. 10 is a perspective view of a chaplet asformed by the die.

The die comprises in general two relatively movabledie plates, 1 and 2, adapted to be fixed to corresponding fixed and movable parts of a punch press, or similar power operated machine, so constructed that the movable die plate will travel with reciprocating movement toward and from the fixed die plate, the complete formation of a single chaplet being accomplisher during each stroke of the movable'die plate.

Considering first the fixed die plate 1, the same is rigidly secured to a horizontal base plate 3 of the punch press by means of bolts 14L extending through endwise opening slots 55 formed at the ends of the die plate 1. Located at the central portion of of the die plate 1 is an anvil 6 which rests in an annular recess or depression 7 formed in the upper face of the die plate 1. The anvil projects above the surface ofthe plate and is provided with a concave surface facing upwardly and forming the bottom sur-,

face of the forming recess or depression of the die. On opposite sides of-the anvil and arranged longitudinally of the plate 1 are mounted forming blocks S8, said blocks being spaced apart at their inner and adjacent ends and are there provided with beveled surfaces 99 which terminate above the concave bottom surface of the anvil 6. The upper portion of the beveled surfaces 99 are convergent and form, as will hereinafter appear, thelateral surfaces or sides of the forming recess. These forming blocks are rectangular in shape, although tapering to some extent at their inner ends, as shown in Figure 2, and furthermore are slidably mounted endwise between longitudinally tending guide rails 11-11, and further pro-- vided along their bottom surfaces with a tongue 8 which rests within a groove 12 formed in the surface of the plate 1, as shown in Figure 8. These plates, as before suggested, are movable endwise in a direc tion toward and from each other, the inward movement being a positive one through the medium of members hereinafter to be set forth, and their rearward movement in the opposite direction being accomplished by the provision of coil springs l313 which. are partially enclosed within holes extending horizontally from the rear faces of t he blocks, the said springs being fixed thereto by means of screws 1 l-1 1. The rear or outer ends of the springs are fixed to the plate 1 in a convenient manner at the points 15-15.

Extending inwardly from the right hand side of the die plates is a strip feeding guide rail 16, clearly shown in Figures 1 and 2, this guide rail being located in alignment with the anvil 6 as well as the beveled end surfaces 9-9 of the forming blocks 88, the inner end of said guide rail terminating immediately above and at the central portion of the right hand forming block 8. As a preferable construction, a plate 17 is interposed between the block 8 and the guide rail 16, said plate being fastened to the block 8 by means of screws, and terminating a short distance rearwardly of the beveled. edge 9 thereof. The inner end portion of the plate 1'? is bifurcated and provides for the attacln ment of a small spring plate 18 immediately adjacent to the beveled edge 9 of the block. Immediately to the rear of the spring 18 and surrounded by the opening 19 formed in the plate 17 is a transversely extending slot 20 extending through the block 8, as shown in Figure 7 Projecting upwardly through the slot 20 and terminating fiush with the surface of the block 8 is a slotted neck portion 21 formed integral with the plate 1, the slot 22 formed within said neck 21 extending vertically downward with a tapered conformation through said plate 1 blade carried. by the upper or movable die plate is adapted to enter the slot formed in said neck 21. Along one side of the guide rail 16 extends a vertical flange 23 which projects beyond the end of the guide rail proper, terminating short of the slotted neck 21 in a transverse portion 23 projecting outwardly at right angles with the main portion of the flange 23. Extending beneath the transverse portion 26 of the flange 23 is a flat yicldable plate 24- in alignment with the spring plate 18, the yieldable plate 2% serving as a guiding means for the strips as they are fed from the guide rail 16, beneath the strip cutter hereinafter to be described, and over the forming recess in the fixed die plate 1. Mounted on the transverse portion of the flange 23 is a vertically extending spring arm adapted to be engaged by the upper or movable die plate 2 in its downward movement, and to exert suflicient pressure upon the strips of material fed to the die, through the medium of the transverse flan; portion 2 to prevent endwise movement of the strip during the cutting and forming; j,

operations.

Referring now to the upper or movable die plate 2, the same is provided at opcesite ends with bosses F26-96 in .vhich mounted downwardly extending guide p 27--2T which engage circular ings 28-28 formed in the lower 1, these guide posts and openings serving to insure the movement of the upper die plate in a fixed path. Depending from the under side of the upper plate 2, and in vertical alignment with the anvil 6 of the lower plate, 1, is a post 29, carrying at its lower end an arbor 30. This arbor corresponds in shape to the forming recess included between the upwardly facing surface of the anvil 6, and the laterally facing surfaces 99 of the blocks 8-8, as clearlv shown in Figs. 6 and 7. Referring to Fi i ure 5, it will be seen that the post 29 is extended rearwardly from the anvil 6. and further that a portion of the post immediately above the forming recess is removed. as well as a portion of the arbor 30, so that although the arbor extends the full length i. .As will hereinafter be disclosed a cutting me 2. The shoulder 4-? is. preferably formed at the end of a transversely extending arm 4-8 secured to the upper face of the plate 1 by means of screws 49. Furthermore, the shoulder 47 is slightly elevated from the face of the block 8 to provide a notch 47 (Fig. 7) into which the forward end of the strip is inserted, thus partially securing the end of the strip as well as limiting the distance that the same may be forwardly advanced. The strip having been properly advanced, immediately before the downward movement of the upper plate 2, commences, is in position to be operated upon. The first operation accomplished by the cutting blade 42 which severs the end portion of the strip it passes downwardly into the receiving slot 22. Immediately after this is accomplished, the arbor 30 descends and drives the central portion of the strip downwardly into the forming recesses between the ends of the forming blocks 88. The result of this operation is the bending of the strip into U- shape, and the end portion of the strip extending between the forming recess and the severed edge being thrown upwardly into a vertical position. During this initial bending operation, the extreme end portion is drawn from beneath the shoulder l? and carried downwardly into the forming recess as shown in Figure 7. After the initial forming of the strip into Ll-shape has been completed the arm 33 is actuated by the engagement of the pinion 35 with the rack teeth 37 of the rack bar 36, said arm being normally held from rotation and in its upwardly raised position by the provision of a spring pressed plunger 50 engaging a notch formed in the post 29 as clearly shown in Figure 9. The rotation of the pinion 35 swings the arm 33 down wardly, the forward toe portion 33 striking the upwardly projecting end portion of the strip and bending it laterally and downwardly at right angles against the upper concave surface of the foot portion 31 of the arbor 30, it being noted that the end portion of the strip that has been bent downwardly extends a short distance beyondthe opposite end portion now forming one of the side walls of the formed chaplet. The arm 33 comes to rest immediately above the arbor 30 after the bending of the strip completely around said arbor, and while in a position of rest the sliding blocks 8-8 are forced inwardly by the action of the cam shoulders 46-416 which follows immediately after the operation of the arm 33. The effect of the inward movement of the forming blocks 8-8 is to exert pressure upon the side walls of the formed strip or chaplet, with the result that the walls thereof are permanently set so that when the chaplet is removed from the die,

eration in the forming process, this step being accomplished at the end of a downward stroke of the the plate 2, which immediately thereafter begins its upward stroke. Mani i estly, the forming blocks are released at the instant the cam shoulders l-64l6 pa. out of contact therewith, thus permitting the springs 13-l3 to act, drawing them rearwardly and away from the siues oi the arbor 30. Simultaneously the arm 33 is swung upwardly and out oil contact with the chaplet by reason of the nent between the pinion 35 and rack teeth 37, so that the chaplet is free to be removed from the foot 31 of the arbor 30, it being observed that the latter carried upwardly with the plate 2.

The final operation in forming a complete chaplet is til 10 removal of the same from the arbor 30, this being completed by means of a device known as a stripper, preferably constructed in the following manner:

A stripper sleeve 51 is slidably mounted upon the arbor 30, being held in position thereon by means of a slot and screw con nection, as shown at 52 in Figure 3. This sleeve is provided with a rearwardly projecting arm which is fixed to a sliding loci: mounted upon two parallel guide rods 5a extending horizontally from the post 29. Attached to the rear edge of the lower plate 1 is a vertically arranged cam plate hav ing a cam slot 56 formed thereon. This slot 56 is engaged by a cam roller 57 mounted at the end of an arm 53 mounted upon the block 53. Referring to Figure 5, it will be seen that the cam slot 56 is vertical throughout its lower portion and inclined at an an gle of substantially e5 degrees inwardly to ward the upper plate throughout its upper portion; Furthermore, the position of the stripper sleeve 51 is to be noted as being withdrawn from that portion of the arbor on which the chaplet is formed; namely, the foot 31 thereof. Assuming now that the upper plate 2 begins its movement in an upward direction, the stripper sleeve 51 will remain stationary until the cam roller 51' engages the inclined portion of the cam slot 56. At this point the sliding block as well as the stripper sleeve 51 are moved forwardly, the latter engaging the chaplet mounted on the arbor, forcing or stripping the same completely therefrom, and allowing it to drop or to be otherwise disposed oi iii a suitable receptacle. During the down ward stroke of the plate 2 the stripper is manifestly withdrawn from the foot 31 of the arbor 30 by the action of the cam slot 56 where it remains until the succeeding upward stroke.

Although the operation of forming a single chaplet is herein described in detail, it is to be understood that the machine is operated continuously so that during each stroke of the upper die plate 2, a complete chaplet is produced.

Although I have described and illustrated a die adapted for producing a particular type of chaplet, it is to be understood that the details of construction may be variously modified for producing other shapes of chaplets without departing from the spirit of the invention. Therefore, I do not wish to be limited except in so far as the invention is specifically set forth in the appended claims.

I claim as my invention:

1. In a die of the character described, the combination of fixed and movable die members, one of said die members being provided with a forming recess comprising transversely movable forming blocks, the other of said die members comprising an arbor extending transversely to the path of the movable die member, an oscillating arm mounted on said movable die member, and adjacent said arbor, said members acting successively to bend a strip of metal into U-shape, to bend one end portion thereof over said arbor, and to apply pressure to the formed strip.

2. In a die of the character described, the combination of fixed and movable die plates, an arbor mounted on one of said plates and comprising a post having a forming arbor mounted at the end thereof, the other plate having a forming recess formed therein and adapted to co-operate with said arbor to bend a strip of metal substantially into U- shape, and an oscillating arm journalled in said post and operative in the relative move ment of the die plates to complete the bending of the strip around said arbor.

3. In a die of the character described, the combination of fixed and movable die plates, a forming recess in one of said plates comprising movable forming blocks, an arbor mounted on the other plate and adapted to fit within said forming recess, and to bend a strip of material into U-shape, an oscillating arm cooperating with said arbor to bend an end portion of said strip over said arbor, and cam members operative subsequent to the bending operations to force said blocks toward each other, thereby setting the bent strip.

4. In a die of the character described, the combination of fixed and movable die plates, a forming recess of predetermined shape in one of said plates and adapted to have a strip of metal advanced over said recess, a formingarbor mounted on the other of said plates in alignment with said recess, and cooperating with said recess to bend a strip of metal substantially into U-shape, an oscillating arm mounted adjacent said arbor, and operative to bend one, end portion of the strip transversely and over the arbor, and means for setting the bent strip after the forming operation.

5. In a die of the character described, the combination of fixed and. movable die plates, a substantially U-shaped forming recess in one of said plates, comprising slidable forming blocks, an arbor carried by the other plate and adapted to engage said recess, an arm journalled adjacent said arbor, and movable in a direction transverse to the direction of movement of said. arbor, and means for actuating said arm comprising a pinion operatively connected therewith, and adapted to engage rack teeth mounted on the first mentioned die plate, and cam members operative in the relative movement of said plates to actuate said blocks toward said recess.

a forming arbor mounted on one of said plates, the other plate having a forming recess therein adapted to co-operate with said arbor to bend a strip of metal into U-shape, an oscillating arm mounted adjacent said arbor, and co-operating therewith in a relative movement of the die plates to bend an end portion of the strip transversely, means for exerting pressure on at least two sides of the bent strip, and a stripper mounted on said arbor and operative to remove the formed strip therefrom.

7. In a die of the character described, the combination of fixed and movable die plates, a substantially U-shaped forming recess in said fixed plate, comprising slidable forming blocks, an arbor carried by said movable plate and adapted to engage said recess, an arm journalled adjacent said arbor, and movable in a direction transverse to the direction of movement of said arbor, and means for actuating said arm comprising a pinion operatively connected therewith, and adapted to engage rack teeth mounted on the first mentioned die plate, cam members mounted on said movable plate and engaging said forming blocks to actuate the same toward said recess after the forming operation, and means for removing the formed strip from said arbor.

In witness whereof, I hereunto subscribe my name this 24; day of May, A. D. 1920.

HENRY BELLON.

6. In a die of the character described, the combination of fixed and movable die plates, 

